Avaliação das alterações bromatológicas e de degradabilidade do resíduo de lixadeira do algodão após tratamento biológico com Pleurotus sajor-caju

Castro, Alexandre A. de; Paiva, Patrícia Duarte de Oliveira; Dias, Eustáquio Souza; Santos, Juliana dos

doi:10.1590/s1413-70542004000300017

Cited by 7 publications

(8 citation statements)

References 12 publications

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“…2). This BE was higher than that observed for Pleurotus sajor-caju cultivated in maize straw (51%) (Dias et al, 2003) and in cotton residues (56%) (Castro, Paiva, Dias, & Santos, 2004). However, it was lower than when this fungus was cultivated in bean residue (86%) (Dias et al, 2003).…”

Section: Biological Efficiency (Be)contrasting

confidence: 64%

Enrichment of Pleurotus ostreatus mushrooms with selenium in coffee husks

et al. 2012

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Pleurotus ostreatus fungus forms an edible mushroom that possesses important nutritional and medicinal properties. Selenium (Se) is essential to human diets and it is in low concentration in the soil, and consequently in food. P. ostreatus was grown in coffee husks enriched with various concentrations of sodium selenite. The biological efficiency of P. ostreatus was affected by the addition of high concentrations of Se. The highest level of Se absorption was obtained by adding 51 mg kg 1 of sodium selenite. The mushrooms from first flush contained more Se than the further flushes. These results demonstrate the great potential of coffee husks in the production of Se-enriched mushrooms and show the ability of this fungus to absorb and biomagnify Se.

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Section: Biological Efficiency (Be)contrasting

confidence: 64%

Enrichment of Pleurotus ostreatus mushrooms with selenium in coffee husks

et al. 2012

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“…Considerando que os dois tratamentos possuíam a mesma concentração de farelo de trigo, esses resultados sugerem ou uma diferença na qualidade entre a hemicelulose presente na serragem e aquela presente no resíduo de algodão, ou que a serragem possui outros compostos que podem ter limitado a degradação da sua hemicelulose. Segundo Castro et al (2004), o Pleurotus sajor-caju, mostrou-se eficiente em reduzir as frações FDN e FDA e em aumentar o teor de proteína bruta dos substratos à base de resíduo de algodão no cultivo desse fungo, atribuindo as alterações na fibra como sendo o resultado do metabolismo do fungo P. sajor-caju, que é capaz de solubilizar parte dos componentes da parede celular do resíduo.…”

Section: Resultsunclassified

“…Outro problema no aproveitamento direto do resíduo de lixadeira do algodão na alimentação de ruminantes está relacionado com a estrutura da celulose que se apresenta na forma cristalina, e que se caracteriza por apresentar-se altamente organizada e complexa. Esse fator, além de dificultar sua utilização como fonte energética Avaliação do cultivo de Pleurotus sajor-caju (Fries) Sing... 221 para ruminantes, limita sua decomposição no ambiente, gerando problemas ambientais e econômicos para a indústria têxtil (Almeida et al, 2002;Castro et al, 2004). Uma alternativa para melhorar a qualidade desse subproduto seria o uso de tratamento biológico com a inoculação de basidiomicetos decompositores capazes de degradar celulose, hemicelulose e lignina (Capelari, 1996;Souza, 1998), dentre os quais destacam-se os cogumelos Pleurotus spp.…”

Section: Introductionunclassified

Avaliação do cultivo de Pleurotus sajor-caju (fries) sing. sobre o resíduo de algodão da industria têxtil para a produção de cogumelos e para alimentação animal

et al. 2010

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RESUMOO resíduo proveniente do beneficiamento do algodão em lixadeiras na indústria têxtil é um material rico em lignocelulose, tem baixa digestibilidade e é pobre em proteínas e minerais, o que dificulta seu uso 'in natura' na alimentação de ruminantes. Neste tarbalho, objetivou-se avaliar a produtividade e eficiência biológica deste resíduo de algodão na produção do cogumelo comestível Pleurotus sajor-caju e avaliar as alterações promovidas no resíduo para alimentação de ruminantes. Foram realizados 5 tratamentos: T 1 -80% de serragem de eucalipto + 20% de farelo de trigo (testemunha); T 2 -50% de resíduo de algodão + 50% de serragem; T 3 -45% de resíduo + 45% serragem + 10% de farelo; T 4 -40% de resíduo + 40% serragem + 20% de farelo e T 5 -80% de resíduo + 20% de farelo. O T 5 apresentou os melhores resultados para produtividade (22,46%) e eficiência biológica (71,48%) do Pleurotus sajor-caju. O fungo alterou a constituição dos substratos nos estágios de produção do cogumelo, principalmente os constituintes da fibra e agregou N ao substrato. Dessa forma, o uso do resíduo de lixadeira de algodão no cultivo de Pleurotus sajor-caju pode se tornar uma alternativa viável para produção de cogumelo e melhorar a qualidade deste resíduo para alimentação animal. Termos para indexação:Pleurotus, Cogumelo comestível, resíduos, substratos, celulose, lignina. ABSTRACTThe waste coming from cotton processing in mills in the textile industry is a lignocellulose-rich material, but has low digestibility, and is poor in proteins and minerals, making it inappropriate for ruminant feeding. This study was intended to evaluate the productivity and biologic efficiency of cotton textile mill waste in the production of the edible mushroom Pleurotus sajor-caju, and to evaluate the alterations brought about in the waste for use in ruminant feeding. Five treatments were undertaken in the following manner: T1-80% eucalyptus sawdust + 20% wheat bran (control); T 2 -50% waste + 50% sawdust; T 3 -45% waste + 45% sawdust + 10% wheat bran; T 4 -40% waste + 40% sawdust + 20% wheat bran and T 5 -80% waste + 20% wheat bran. T5 showed the best results for productivity (22.46%) and biologic efficiency (71.48%). Fungus altered the constitution of the substrates in the stages of production of the mushroom. Therefore, the use of cotton textile mill waste in the cultivation of Pleurotus sajor-caju may become a viable alternative for mushroom production, and also improve the quality of this waste for use in animal feeding. INTRODUÇÃOA cadeia produtiva do algodão gera vários subprodutos desde a limpeza inicial onde se retira o caroço, um subproduto nobre, que é destinado à produção de óleo para alimentação humana ou utilizado in natura na alimentação animal, até a produção dos tecidos, onde surgem subprodutos como o resíduo de lixadeira que são resíduos mais pobres da fibra de algodão.O resíduo de lixadeira, resultante do beneficiamento da indústria têxtil do algodão, é um subproduto fibroso, tem baixa digestibilidade e é pobre em proteínas e minerais ...

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“…Many agro-industrial residues contain a higher content of fibers, of low digestibility, than proteins, vitamins and minerals. The colonization or fermentation of these by-products by microorganisms, especially lignocellulosic fungi, can efficiently and affordably increase their digestibility and nutritional value [55]. This procedure has been used successfully in cotton waste [56] by colonization with Brachiaria sp [57].…”

Section: Digestibility Of Jatropha Seed Cake and Ammonium Production mentioning

confidence: 99%

Bio-Detoxification of Jatropha Seed Cake and Its Use in Animal Feed

Kasuya¹,

Luz²,

Pereira³

et al. 2012

Biodiesel - Feedstocks, Production and Applications

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compound formed during seed maturation [12]. The seed of J. curcas has a high concentration of phytic acid, up to 10% of its dry matter [2]. Tannins are polyphenols water-soluble and polar solvents [13]. The tannin content in the seeds of J. curcas is low, representing only 3% of its dry weight [13].Detoxification of the Jatropha seed cake could allow its use as a protein-rich dietary supplement in the animal feed [1,14,15].The use of residue or by-products in animal nutrition can minimize expenditures on the development of food sources, such as soybean, cotton and wheat meals, without causing undesirable effects on the overall production system. However, it is first necessary to know the nutritional value and effects of the by-product's inclusion in animal diets.Some studies have used physical and chemical treatments to detoxify Jatropha seed [2,16,17]. These methods have been effective but require the use of chemicals that may result in other the presence of other residues. Conversely, bio-detoxification does not require the application of any chemical compounds. It may also reduce the concentrations of phorbol esters and anti-nutritional factors to non-toxic levels [18]. Methodology Microorganism, fungal growth conditions and inoculum production (spawn)The isolate Plo 6 of P. ostreatus used in this study belongs to a culture collection from the Department of Microbiology at the Federal University of Viçosa, MG, Brazil. P. ostreatus was grown in a Petri dish containing potato dextrose agar culture medium at pH 5.8 and incubated at 25 °C. After seven days, the mycelium was used for inoculum production (spawn) in a substrate made of rice grains [19]. The rice was cooked for 30 min in water with a ratio of 1:3 rice: water (w/w). After cooking, the rice was drained and supplemented with 0.35% CaCO 3 and 0.01% CaSO 4 . Seventy grams of rice was packed into small glass jars and sterilized in an autoclave at 121 ºC for 1 h. After cooling, each jar was inoculated with 4 agar discs (each 5 mm in diameter) containing the mycelium. The jars were then incubated in the dark at room temperature for 15 d. Substrate and inoculationThe J. curcas seed cake was obtained from an industry of biodiesel (Fuserman Biocombustíveis, Barbacena, Minas Gerais State, Brazil).To select the most suitable substrates for lignocellulolytic enzyme production, we conducted preliminary experiments with Jatropha seed cake and various lignocellulosic residues. We tested P. ostreatus growing on Jatropha seed cake with different percentages of eucalyptus sawdust, eucalyptus bark, corncobs, and coffee husks [20]. The addition of these agroindustrial residues was necessary to balance the carbon and nitrogen ratio, which might benefit mycelial growth [21][22][23].

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Avaliação das alterações bromatológicas e de degradabilidade do resíduo de lixadeira do algodão após tratamento biológico com Pleurotus sajor-caju

Cited by 7 publications

References 12 publications

Enrichment of Pleurotus ostreatus mushrooms with selenium in coffee husks

Enrichment of Pleurotus ostreatus mushrooms with selenium in coffee husks

Avaliação do cultivo de Pleurotus sajor-caju (fries) sing. sobre o resíduo de algodão da industria têxtil para a produção de cogumelos e para alimentação animal

Bio-Detoxification of Jatropha Seed Cake and Its Use in Animal Feed

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